add rest method to ParserFinishedError

1 files changed, 11 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 5d6c3d3..e0c7fa0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -29,6 +29,17 @@ pub enum ParserFinishedError<I: Input> {
     Unfinished(InputIter<I>),
 }
 
+impl<I> ParserFinishedError<I>
+where
+    I: Input,
+{
+    pub fn rest(&self) -> I {
+        let (Self::Err(it) | Self::Unfinished(it)) = self;
+
+        it.rest()
+    }
+}
+
 pub trait Parser<I: Input>: Sized {
     type Output;